Mil-std-417a gr sb725f1
A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5855-01-483-1350
NSN 5915-01-290-4828
NSN 5945-00-578-0903
NSN 5975-01-204-3325
NSN 5965-01-502-0316
NSN 6645-00-192-1152
NSN 5965-00-934-3495
NSN 6150-00-805-0808
NSN 6105-01-082-2298
NSN 5975-00-201-8826
NSN 5975-00-869-8898
NSN 5905-00-359-9751